The major social reform movement that sought to abolish slavery in the United States was the Abolitionist Movement. This movement gained momentum in the early 19th century and comprised various activists, writers, and politicians advocating for the end of slavery. Prominent figures like Frederick Douglass, Harriet Tubman, and William Lloyd Garrison played key roles in spreading awareness about the horrors of slavery and mobilizing public opinion against it. The movement utilized literature, speeches, and underground networks, such as the Underground Railroad, to facilitate escape and resistance. The Abolitionist Movement ultimately contributed to the broader Civil Rights Movement and culminated in the legal emancipation of enslaved individuals following the Civil War.